替換（「\ n」，「」）不起作用

String in = "dr. goldberg offers everything i look for in a general practitioner. he's nice and easy to talk to without being patronizing; he's always on time in seeing his patients; he's affiliated with a top-notch hospital (nyu) which my parents have explained to me is very important in case something happens and you need surgery; and you can get referrals to see specialists without having to see him first. really, what more do you need? i'm sitting here trying to think of any complaint\n\ns i have about him, but i'm really drawing\n a blank.";

此代碼似乎工作得很好。替換（「 n」，「」）不起作用

in = in.replaceAll("\n", "");

但這

for(String temp: review){ 
    String reviews = (StringUtils.substringBetween(temp,"\"text\": \"", "\", \"type\"")).replaceAll("\n", ""); 

    if(reviews.equals(in)){ 
     System.out.println("yes"); 
     System.exit(1); 
    } 
}

似乎並沒有工作。它不是刪除新的常量，有人可以解釋爲什麼！

（我使用substringBetween獲取文本從一個文件中的一部分）

來源

2014-12-02 shreya seshu

什麼呢'StringUtils.substringBetween（溫度，「\」文本\ 「：\」「」\「，\ 」類型\「」））'演算值爲在運行時？ – 2014-12-02 22:06:15

@JigarJoshi - 它評估到相同的字符串asinput2但新的線常量，替換似乎並沒有工作 – 2014-12-02 23:03:25

我也檢查這兩個字符串的平等，使用input.equals（評論），它應評估爲真，但事實並非如此。 – 2014-12-02 23:04:25

看一看下面的代碼：

String sample="This string has new line \\n " + "New line is here if \\n \n is working"; 
    System.out.println("Original String: " + sample); //replacing \n or newline character so that all text come in one line 
    System.out.println("Escaped String: " + sample.replaceAll("\n", ""));

或者，您可以使用系統屬性刪除換行符如下圖所示：

String text = readFileAsString("words.txt"); 
text = text.replace(System.getProperty("line.separator"), "");

來源

2014-12-02 23:37:12

替換（「\ n」，「」）不起作用

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